US citizens can visit the United Kingdom visa-free for tourism or business for up to 6 months; no pre-travel visa is required, but entry is at the discretion of UK Border Force and you may be asked to show funds, accommodation, and a return ticket.
Guide last updated September 4, 2026. Always verify with official sources before travel.
Always confirm requirements with government or embassy sources before applying.
This guide is for information only. Visa policies change without notice. Travel Visa Stack is not an immigration authority. Always verify with official government or embassy sources before making travel plans.